A) \[1904\,\,J\]
B) \[1984\,\,J\]
C) \[3202\,\,J\]
D) \[2082\,\,J\]
Correct Answer: D
Solution :
Heat supplied to vaporise the water \[dQ=mL\] where \[L\] is the latent heat of vaporisation of water. \[\therefore \] \[dQ=1\times 2250=2250\,\,J\] According to first law of thermodynamics, \[dQ=dU+dW\] or \[2250=dU+168\] or \[dU=2250-168\] \[=2082\,\,J\]You need to login to perform this action.
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